US5792600AExpiredUtility

Silver halide photographic light sensitive material

Assignee: KONISHIROKU PHOTO INDPriority: Nov 22, 1996Filed: Nov 18, 1997Granted: Aug 11, 1998
Est. expiryNov 22, 2016(expired)· nominal 20-yr term from priority
Inventors:Ken Nagami
G03C 1/32G03C 1/0051Y10S430/151Y10S430/162G03C 1/95
56
PatentIndex Score
4
Cited by
3
References
9
Claims

Abstract

Disclosed is a silver halide photographic light sensitive material comprising a support and provided thereon, a light sensitive silver halide emulsion layer and a non-light sensitive hydrophilic binder layer, wherein at least one of the light sensitive silver halide emulsion layer and the non-light sensitive hydrophilic binder layer contains tabular silica particles covered with a hardened gelatin layer.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
       1. A silver halide photographic light sensitive material comprising a support and provided thereon, a light sensitive silver halide emulsion layer and a non-light sensitive hydrophilic binder layer, wherein at least one of the light sensitive silver halide emulsion layer and the non-light sensitive hydrophilic binder layer contains tabular silica particles covered with a hardened gelatin. 
     
     
       2. The silver halide photographic light sensitive material of claim 1, wherein the tabular silica particles have an average particle size of 2 to 300 nm and an aspect ratio of 2 to 100, and the tabular silica particle content of the total silica particles is 50 weight % or more. 
     
     
       3. The silver halide photographic light sensitive material of claim 1, wherein each of the light sensitive silver halide emulsion layer and the non-light sensitive hydrophilic binder layer contains gelatin. 
     
     
       4. The silver halide photographic light sensitive material of claim 3, wherein the total gelatin content of a layer containing the tabular silica particles is 0.2 to 1.5 g/m 2 , and the tabular silica particle content (by weight) of said layer is 0.05 to 1.0 based on the total gelatin content. 
     
     
       5. The silver halide photographic light sensitive material of claim 1, wherein the light sensitive silver halide emulsion layer contains the tabular silica particles. 
     
     
       6. The silver halide photographic light sensitive material of claim 5, wherein the light sensitive silver halide emulsion layer contains tabular silver halide grains having an aspect ratio of 3 to 15. 
     
     
       7. The silver halide photographic light sensitive material of claim 1, wherein the hardened gelatin is formed by hardening gelatin with a hardener. 
     
     
       8. A silver halide photographic light sensitive material comprising a support and provided thereon, a light sensitive silver halide emulsion layer and a non-light sensitive hydrophilic binder layer, each layer containing gelatin, wherein at least one of the light sensitive silver halide emulsion layer and the non-light sensitive hydrophilic binder layer contains tabular silica particles covered with hardened gelatin, the tabular silica particles having an average particle size of 1 to 300 nm and an aspect ratio of 2 to 100, and the tabular silica particle content of the total silica particles being 50 weight % or more, and the total gelatin content of a layer containing the tabular silica particles is 0.2 to 1.5 g/m 2 , and the tabular silica particle content (by weight) of the layer containing the tabular silica particles is 0.05 to 1.0 based on the total gelatin content. 
     
     
       9. A silver halide photographic light sensitive material comprising a support and provided thereon, a light sensitive silver halide emulsion layer containing gelatin and tabular silica particles covered with hardened gelatin, the tabular silica particles having an average particle size of 1 to 300 nm and an aspect ratio of 2 to 100, and the tabular silica particle content of the total silica particles being 50 weight % or more, wherein the total gelatin content of the emulsion layer is 0.2 to 1.5 g/m 2 , and the tabular silica particle content of the emulsion layer is 0.05 to 1.0 based on the total gelatin content.

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